Function CheckDuplicates

src/OpenColorIO/OCIOYaml.cpp:301–321

// Duplicate Checker

inline void CheckDuplicates(const YAML::Node & node)
{
    std::unordered_set<std::string> keyset;

    for (Iterator iter = node.begin(); iter != node.end(); ++iter)
    {
        const std::string & key = iter->first.as<std::string>();

        if (keyset.find(key) == keyset.end())
        {
            keyset.insert(key);
        }
        else
        {
            std::ostringstream os;
            os << "Key-value pair with key '" << key;
            os << "' specified more than once. ";
            throwValueError(node.Tag(), iter->first, os.str());
        }
    }
}

// Custom Key Loader